Various Changes

[danjford]

I had some spare time, so I did this more for fun than anything but have a look at my fork.

Here's an overview of what I've done:

• Added NPM
  • npm run start - this will run the project in 'development' mode with watch tasks and serve the index.html to localhost with live reload for any changes
• Removed the jQuery dependency
• Made the source in ES6
• Added some prototypes so that the animation can easily by stopped and started using stop() and start()
• Separated the code into three distinct files
  • demo - the demo code of the library
  • dist - the built js, and copied css
  • src - the original unbuilt js and css
• Formatted the css code
• Updated the README to reflect the changes